Ragamuffin's Hat

Instant - Destroy this: Draw a card then put a card from your hand on the top or bottom of your deck. Activate this only if you have 1 card in hand.

Rulings

From the Tales of Aria release notes

There is no priority during the resolution of an ability. For example, you cannot play or activate an ability after drawing the card but before putting a card on the top or bottom.
The ability still resolves even if you no longer have 1 card in hand at the time it resolves. (As long as you had 1 card in hand when you activated it.)
Your opponent knows if you put the card on the top or bottom of your deck. (But not what the card is.)

ClassGeneric

TypeEquipment

SubtypesHead

Defense0

SetsELE, FAB